WO2018095442A1 - 量子点及其复合材料在制备防紫外线产品中的应用 - Google Patents

量子点及其复合材料在制备防紫外线产品中的应用 Download PDF

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WO2018095442A1
WO2018095442A1 PCT/CN2018/073589 CN2018073589W WO2018095442A1 WO 2018095442 A1 WO2018095442 A1 WO 2018095442A1 CN 2018073589 W CN2018073589 W CN 2018073589W WO 2018095442 A1 WO2018095442 A1 WO 2018095442A1
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quantum dot
carbon quantum
quantum dots
sample
labeled
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PCT/CN2018/073589
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English (en)
French (fr)
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刘应亮
胡广齐
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华南农业大学
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Priority claimed from CN201611031042.7A external-priority patent/CN106521674B/zh
Priority claimed from CN201611032126.2A external-priority patent/CN106521679A/zh
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Publication of WO2018095442A1 publication Critical patent/WO2018095442A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties

Definitions

  • the invention relates to a new use of a quantum dot and a composite material thereof (quantum dot@inorganic compound), in particular, a quantum dot or a composite material of a quantum dot and an inorganic compound as a UV absorber, in the preparation of an ultraviolet protection product Applications.
  • UV ultraviolet light
  • UVA black spot ultraviolet light, wavelength between 320 and 400 nm
  • UVB red spot ultraviolet light, wavelength between 280 and 320 nm
  • UV absorbers mainly include salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines and hindered amines, trichromatic phosphors, phosphors for LEDs, fluoride systems, Aluminate system, silicate system and sulfide system.
  • traditional UV absorbers have many defects: 1. Most of them are chemical materials. Toxic raw materials, such as benzene, are often used in the synthesis process. It is inevitable that toxic raw materials or toxic intermediates are added to the finished products, and UV absorbers are used as one. Products that exist in people's daily life and are frequently exposed, such as cosmetics, synthetic fibers, etc., directly or indirectly endanger people's health and safety; 2.
  • UV absorbers are mostly single UV absorbers, absorbing ultraviolet spectrum It is also relatively simple, either mainly absorbing UVA or mainly absorbing UVB. Only a variety of mixing can achieve the effect of absorbing both UVA and UVB.
  • the complex UV absorber manufacturing process is complicated; 3.
  • the traditional UV absorber is expensive.
  • the average selling price of the market is 50-80 yuan/kg, which accounts for a large proportion of additive cost of industrial products. 4. It affects the transparency of products and limits the scope of use of UV absorbers.
  • Carbon Dots a new type of fluorescent carbon nanoparticle that has been widely used in recent years, is a nearly spherical and small particle size zero-dimensional semiconductor nanocrystal composed of few molecules or atoms. Nanoclusters. Quantum dots mainly include CdSe, CuInS 2 , carbon dots, graphene quantum dots, silicon dots, etc., but in the ultraviolet region, the spectral absorption is strong, and the visible light has a high transmittance of quantum dots, mainly carbon dots and graphite. An ene quantum dot, and after excitation, can produce a photoluminescence phenomenon, that is, emit fluorescence.
  • the primary object of the present invention is to provide an application of quantum dots and composite materials thereof in the preparation of an ultraviolet protection product.
  • quantum dots or quantum dots @inorganic compounds in the preparation of UV-resistant products.
  • the quantum dots refer to carbon quantum dots or graphene quantum dots.
  • the quantum dot@inorganic compound refers to a carbon quantum dot@inorganic compound or a graphene quantum dot@inorganic compound.
  • the carbon quantum dot@inorganic compound is preferably a carbon quantum dot @SiO 2 , a carbon quantum dot @Al 2 O 3 , a carbon quantum dot @ZnO, a carbon quantum dot @TiO 2 or a carbon quantum dot @BaSO 4 ;
  • the graphene quantum dot@inorganic compound is preferably graphene quantum dot @SiO 2 , graphene quantum dot @Al 2 O 3 , graphene quantum dot @ZnO, graphene quantum dot @TiO 2 or graphene quantum dot @BaSO 4 .
  • the anti-UV product is fiber, cosmetic, paint, ink, resin or rubber.
  • the fibers are polyvinyl alcohol fibers, carboxymethyl cellulose fibers;
  • the cosmetic is a sunscreen lotion or sunscreen
  • the coating is an oil paint or a water paint
  • the ink is an aqueous ink or an ultraviolet curing ink
  • the resin is a polyamide resin, a polyethylene resin, a phenol resin, an ABS resin, an epoxy resin for LED encapsulation, or a silicone resin.
  • the rubber is isoamyl rubber, styrene butadiene rubber or nitrile rubber.
  • the structures and properties of SiO 2 , Al 2 O 3 , ZnO and TiO 2 are similar, and they are easy to form mesoporous structure, which is beneficial to the quantum dots entering mesopores to form stable composite materials, and the four kinds of oxidation
  • BaSO 4 can also enclose quantum dots in the unit cell, and the composite material can not only maintain the performance of quantum dots, but also has good compatibility, so it can be applied to various industries.
  • the quantum dots are combined with the inorganic compound to modify the surface of the quantum dots, thereby avoiding the agglomeration of the quantum dots and making them better compatible with the raw materials for preparing the products, and obtaining quantum dots@inorganic compounds.
  • the composite material allows it to be added as a UV absorber to various products to produce a UV-resistant product.
  • an anti-ultraviolet product by directly adding the prepared quantum dots to fibers, cosmetics, resins, paints or inks, an anti-ultraviolet product can be prepared, and the mixture can be uniformly stirred and mixed to uniformly disperse the quantum dots in the raw materials for preparing the products, thereby avoiding The phenomenon of agglomeration of quantum dots.
  • the invention prepares an anti-UV product by adding a quantum dot or a quantum dot composite material to a raw material, and the prepared anti-UV product has a wide ultraviolet absorption range and can absorb both UVA and UVB.
  • the prepared quantum dot or quantum dot composite material By adding the prepared quantum dot or quantum dot composite material to fibers, cosmetics, paints, inks or resins, the product has the function of absorbing ultraviolet rays, reducing the ultraviolet transmittance of cosmetics, and prolonging the coating, resin, fiber or ink, etc. The life of the product.
  • carbon quantum dots or graphene quantum dots as a new type of ultraviolet absorber, have incomparable advantages such as low toxicity and good biocompatibility, as well as optical stability and easy functionalization.
  • carbon or graphene quantum dots @ inorganic compounds have low toxicity and biocompatibility, the preparation process does not contain toxic raw materials, the product is non-toxic, so it can be applied to fibers, cosmetics, coatings, inks or resins.
  • the quantum dot and quantum dot composite materials are simple in production process, low in cost, high in temperature resistance, difficult to decompose, and have good stability, and can be used for other products to maintain long-lasting ultraviolet absorption characteristics.
  • Example 1 is a light transmittance map of carbon quantum dots prepared in Example 1.
  • Example 2 is a transmission electron micrograph of a carbon quantum dot prepared in Example 1.
  • Example 3 is an absorption spectrum diagram of graphene quantum dots prepared in Example 2.
  • Example 4 is a scanning electron micrograph of a carbon quantum dot @SiO 2 prepared in Example 3.
  • Example 5 is a partially enlarged view of a scanning electron micrograph of a carbon quantum dot @SiO 2 prepared in Example 3.
  • Example 8 is a scanning electron micrograph of a carbon quantum dot @Al 2 O 3 prepared in Example 4;
  • Example 10 is a scanning electron micrograph of a carbon quantum dot @ZnO prepared in Example 5;
  • Example 11 is a light transmittance spectrum of a carbon quantum dot @ZnO prepared in Example 5;
  • Example 12 is a scanning electron micrograph of a carbon quantum dot @TiO 2 prepared in Example 6;
  • Figure 13 is a light transmittance map of carbon quantum dot @TiO 2 prepared in Example 6.
  • reagents used in the examples are commercially available from the market unless otherwise specified.
  • the prepared carbon quantum dots are in the wavelength range of 200-400 nm , including light in the wavelength range of 280-400 nm, that is, UVA and UVB regions, with obvious absorption, absorption peak I: ⁇ max ⁇ 267 nm, light transmittance is about 36%; absorption peak II: ⁇ max ⁇ 357 nm, light transmittance is about 3%; indicating that the prepared carbon quantum dots have good absorption effects on UVA and UVB, and the complete absorption of ultraviolet rays by carbon quantum dots can be achieved by adjusting the concentration of carbon quantum dots.
  • the prepared carbon quantum dots were examined by transmission electron microscopy. As shown in Fig. 2, the black dark spots were prepared carbon quantum dots, the carbon quantum dots were nearly circular, the dispersion was uniform, and the particle size distribution range was concentrated.
  • the obtained graphene quantum dots were diluted to a concentration of 10 ⁇ g/g for UV-visible absorption spectroscopy.
  • the results are shown in Fig. 3.
  • the obtained graphene quantum dots are in the range of 200-400 nm, which is remarkable.
  • the absorption peak Based on the high visible light transmittance of graphene quantum dots and UV absorption properties, graphene quantum dots can be used as ultraviolet absorbers.
  • the obtained solution was suction filtered and vacuum dried at 50 ° C to obtain a white powder, which is a carbon quantum dot @SiO 2 composite material obtained.
  • the carbon quantum dots prepared in Example 1 and the mesoporous SiO 2 were thoroughly stirred in a water/ethanol solution, and then washed and dried to obtain a carbon quantum dot @SiO 2 composite material.
  • the carbon quantum dot @SiO 2 composite material prepared by the former method in Example 3 was subjected to electron microscopic scanning, and the results are shown in Figs. 4 and 5. It can be seen from Fig. 4 and Fig. 5 that the prepared carbon quantum dot @SiO 2 composite material has good dispersibility and uniform particle size distribution, and Fig. 5 is a high-resolution scanning electron microscope, and the crystal of the SiO 2 material can be clearly seen. Spheroidal, carbon quantum dots are attached to the surface of the SiO 2 material, and the spheroidal crystals are intermingled with each other.
  • the carbon quantum dot @SiO 2 composite material prepared by the former method in Example 3 was dissolved in water to prepare an aqueous solution having a concentration of 1 ⁇ g/g, and then the transmittance was examined.
  • the spectrum is shown in Fig. 6. It can be seen from Fig. 6 that the carbon quantum dot @SiO 2 composite material has obvious ultraviolet light absorption in the wavelength range of 200-400 nm, including UVA and UVB regions; absorption peak I: ⁇ max ⁇ 267 nm, and light transmittance is about 50%.
  • the absorption peak II ⁇ max ⁇ 357 nm, the light transmittance is about 35%; indicating that the prepared carbon quantum dot @SiO 2 composite material has a good absorption effect on UVA and UVB.
  • the excitation spectrum and fluorescence emission spectrum of the sample were determined by fluorescence spectrophotometry on the 1 ⁇ g/g carbon quantum dot @SiO 2 aqueous solution prepared above. The spectrum is shown in Fig. 7.
  • the excitation spectrum and fluorescence of the carbon quantum dot @SiO 2 material are shown.
  • the emission spectrum is an approximate peak pattern, and the excitation light has a high absorption peak wavelength in the wavelength range of 200-400 nm, and the fluorescence emission light wavelength range is concentrated at 400-500 nm. From the UV absorption effect of the prepared carbon quantum dot @SiO 2 and the corresponding fluorescence emission effect, the prepared carbon quantum dot @SiO 2 composite material obtains the ultraviolet absorption characteristics and the fluorescence emission characteristics of the
  • Preparation of carbon quantum dot @Al 2 O 3 composite Weigh 0.5g mesoporous Al 2 O 3 material dissolved in 100mL distilled water or ethanol, stir until Al 2 O 3 material is completely dispersed in the solvent, and add to the above solution 100 ⁇ g of the carbon quantum dots prepared in Example 1 were stirred for 30 min to uniform ultrasonic dispersion for 24 h, or 100 ⁇ g of the carbon quantum dots prepared in Example 1 were added during the preparation of the mesoporous Al 2 O 3 material, and the resulting solution was suction filtered, and then The carbon quantum dot @Al 2 O 3 composite was prepared by drying at 60-100 °C.
  • the carbon quantum dot @Al 2 O 3 composite has obvious ultraviolet light absorption in the wavelength range of 280-400 nm, that is, in the UVA and UVB regions, and the absorption peak I: ⁇ max ⁇ 267 nm, and the light transmittance is about 60%; absorption peak II: ⁇ max ⁇ 357 nm, light transmittance is about 40%; indicating that the prepared carbon quantum dot @Al 2 O 3 composite material has good absorption effect on UVA and UVB.
  • the excitation spectrum and fluorescence emission spectrum of the sample were determined by fluorescence spectrophotometry on the 1 ⁇ g/g carbon quantum dot @Al 2 O 3 aqueous solution prepared above.
  • the prepared carbon quantum dot @Al 2 O 3 composite obtained the ultraviolet absorption characteristics and emission of carbon quantum dots. Fluorescent properties.
  • the excitation spectrum and fluorescence emission of the sample were determined by fluorescence spectrophotometry on the 1 ⁇ g/g graphene quantum dot @Al 2 O 3 aqueous solution prepared above.
  • the spectra were similar to those of the carbon quantum dot @Al 2 O 3 composite, indicating that the prepared graphene quantum dot @Al 2 O 3 composite obtained the ultraviolet absorption characteristics and the fluorescence emission characteristics of the graphene quantum dots.
  • the method for preparing the carbon quantum dot @ZnO composite material is the same as the method for preparing the carbon quantum dot @Al 2 O 3 composite material in Example 4.
  • the carbon quantum dots in Example 1 are added to the reaction solution of ZnO, and carbon quantum dots are encapsulated in the ZnO crystal during the formation of ZnO to achieve a firm structural recombination.
  • the carbon quantum dot @ZnO composite material prepared by the preparation method of the former carbon quantum dot @ZnO composite material in Example 5 was subjected to scanning electron microscopic examination, and the results are shown in FIG. It can be seen from Fig. 10 that the obtained scanning electron micrograph of the composite material can clearly distinguish the crystal structure and its shape, the crystal arrangement is uniform, the dispersion is good, and the particle size distribution is uniform.
  • the carbon quantum dot @ZnO composite material prepared by the preparation method of the former carbon quantum dot @ZnO composite material in the embodiment 5 is dissolved in water to prepare an aqueous solution having a concentration of 1 ⁇ g/g, and then the transmittance is detected, and the spectrum is as follows. Figure 11 shows. It can be seen from Fig.
  • the carbon quantum dot @ZnO composite material has obvious ultraviolet light absorption in the wavelength range of 280-400 nm, that is, UVA and UVB regions, and the absorption peak I: ⁇ max ⁇ 267 nm, and the light transmittance is about 60%;
  • the excitation spectrum and fluorescence emission spectrum of the sample were determined by fluorescence spectrophotometry on the 1 ⁇ g/g carbon quantum dot @ZnO aqueous solution prepared above.
  • the method for preparing the graphene quantum dot @ZnO composite material is the same as the method for preparing the graphene quantum dot @Al 2 O 3 composite material in the fourth embodiment.
  • the prepared graphene quantum dot @ZnO composite material was dissolved in water to prepare an aqueous solution with a concentration of 1 ⁇ g/g, and then the transmittance was measured. The results were similar to those of the carbon quantum dot @ZnO composite, indicating that the prepared graphene quantum dots were prepared.
  • @ZnO composites have good absorption effects on UVA and UVB.
  • Example 2 Preparation of a carbon composite material prepared in the same quantum dot @TiO carbon quantum dot @Al Method 2 O 3 composite material 4.
  • the prepared carbon quantum dot @TiO 2 composite material was subjected to scanning electron microscopy, and the results are shown in FIG. It can be seen from Fig. 12 that the crystal structure of the prepared composite material is pyramidal or prismatic, the dispersion is relatively uniform, and the crystal size distribution range is narrow.
  • the prepared carbon quantum dot @TiO 2 composite material was dissolved in water to prepare an aqueous solution having a concentration of 1 ⁇ g/g, and then the transmittance was examined. The spectrum is shown in FIG. It can be seen from Fig.
  • the carbon quantum dot @TiO 2 composite material has obvious ultraviolet light absorption in the wavelength range of 280-400 nm, that is, in the UVA and UVB regions, and the main absorption peak: ⁇ max ⁇ 357 nm, and the light transmittance is about 20%. It shows that the prepared carbon quantum dot @TiO 2 composite has good absorption effect on UVA and UVB.
  • the excitation spectrum and fluorescence emission spectrum of the sample were determined by fluorescence spectrophotometry on the 1 ⁇ g/g carbon quantum dot @TiO 2 aqueous solution prepared above. The results were similar to those of the prepared carbon quantum dot @SiO 2 , and both had significant blue light emission. However, only the main peak of the emission is slightly different, and the prepared carbon quantum dot @TiO 2 composite material obtains the ultraviolet absorption characteristics and the fluorescence emission characteristics of the carbon quantum dots.
  • Preparation 2 graphene composite quantum dot @TiO Example graphene quantum dot @Al same composite material prepared in four 2 O 3.
  • the prepared graphene quantum dot @TiO 2 composite material was dissolved in water to prepare an aqueous solution having a concentration of 1 ⁇ g/g, and then the transmittance was measured. The result was similar to that of the carbon quantum dot @TiO 2 composite, indicating that the prepared graphene was obtained.
  • the quantum dot @TiO 2 composite has good absorption effect on UVA and UVB.
  • Preparation of carbon quantum dot @BaSO 4 composite weigh 50g of BaCl 2 ⁇ 2H 2 O, dissolve it in 400ml of water, prepare liquid A, then add 10ml of carbon quantum dot solution (2mg/ml), stir well Evenly, weighed 27g (NH 4 ) 2 SO 4 , dissolved in 300ml of water, prepared as liquid B, and then added B liquid to the liquid A in 15 minutes, continue the reaction for 15min, then wash and dry, ie A carbon quantum dot @BaSO 4 composite material was obtained. The carbon quantum dot @BaSO 4 composite material was obtained and observed under ultraviolet light to have a bright blue light emission. It was dispersed in water and tested for light transmittance.
  • Example 8 Application of quantum dots and quantum dot composites on polyvinyl alcohol fibers, the amount of addition is generally 0.01% to 1.2%, and the specific operation process is as follows:
  • the obtained polyvinyl alcohol fiber was observed, and the ultraviolet light test was carried out by a solar radiation spectrometer, and the light was irradiated with a wavelength range of 200-1000 nm, and its absorption wavelength and transmittance were recorded in Table 1.
  • Example 9 Application of quantum dot and quantum dot composite materials on sunscreen emulsions, the amount of addition is generally 0.01% to 2.0%, and the specific operation process is as follows:
  • Example 10 The application of quantum dots and quantum dot composite materials on sunscreens is generally 0.01% to 2.0%, and the specific operation process is as follows:
  • the prepared sunscreen was observed, and the ultraviolet radiation test was carried out by a solar radiation spectrometer, and the light was irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance were recorded in Table 4 in the recording.
  • Example 11 The application of quantum dots and quantum dot composite materials on oil paints is generally 0.01% to 2.0%, and the specific operation process is as follows:
  • the prepared oil paint is coated into a film, and then observed, and subjected to ultraviolet protection test by a solar radiation spectrometer, and the light is irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded in Table 5 in.
  • Example 12 Application of quantum dots and quantum dot composite materials on water-based paints, the amount of addition is generally 0.01% to 3.5%, and the specific operation process is as follows:
  • the resulting product is labeled as Sample 1
  • 100 mg of carbon quantum dots the resulting product is labeled as Sample 2
  • 150 mg of carbon quantum dots the resulting product is labeled as Sample 3
  • 80 mg of graphene quantum dots the resulting product is labeled as Sample 4
  • 150 mg of graphene quantum dots the obtained product is labeled as sample 5
  • a water-based paint having an ultraviolet-resistant function is obtained.
  • the prepared water-based paint is coated into a film, and then observed, and subjected to an ultraviolet-proof test by a solar radiation spectrometer, and a light having a wavelength range of 200-1000 nm is selected for irradiation, and the absorption wavelength and transmittance are recorded in Table 6 in.
  • Example 13 Application of quantum dots and quantum dot composite materials on aqueous inks, the amount of addition is 0.01% to 3.5%, and the specific operation process is as follows:
  • the prepared aqueous ink is coated into a film, and then observed, and subjected to an ultraviolet-proof test by a solar radiation spectrometer, and a light having a wavelength range of 200-1000 nm is selected for irradiation, and the absorption wavelength and transmittance are recorded in Table 7 in.
  • Example 14 Application of quantum dot and quantum dot composite materials on ultraviolet curable inks, the amount of addition is 0.01% to 3.5%, and the specific operation process is as follows:
  • Magenta stirred for 2 h, divided equally into 5 portions, respectively, adding 30 mg of carbon quantum dots (the resulting product is labeled as sample 1), 60 mg of carbon quantum dots (the resulting product is labeled as sample 2), and 90 mg of carbon quantum dots (the resulting product is labeled as Sample 3), 30 mg of graphene quantum dots (the resulting product is labeled as sample 4), 90 mg of graphene quantum dots (the resulting product is labeled as sample 5), and after thorough mixing, an ultraviolet curable ink having an ultraviolet-resistant function was obtained.
  • the prepared UV-curable ink is coated into a film, and then observed, and subjected to an ultraviolet-proof test by a solar radiation spectrometer, which is irradiated with light having a wavelength range of 200-1000 nm, and its absorption wavelength and transmittance are recorded in In Table 8.
  • Example 15 Application of quantum dot and quantum dot composite materials on silicone resin, the amount of addition is generally 0.01% to 1.5%, and the specific operation process is as follows:
  • the exchange resin is removed by filtration and the low-boiling substance is removed under reduced pressure to obtain a yellowish silicone resin having an ultraviolet-resistant function.
  • the prepared silicone resin is coated into a film, and then observed, and subjected to ultraviolet protection test by a solar radiation spectrometer, and irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded in the table. 9 in.
  • Example 16 The application of quantum dots and quantum dot composite materials on epoxy resin is generally 0.01% to 1.5%, and the specific operation process is as follows:
  • the obtained product is labeled as sample 1
  • 20 mg of carbon quantum dots the resulting product is labeled as sample 2
  • 30 mg of carbon quantum dots the resulting product is labeled as sample 3
  • 15 mg of graphene quantum dots the resulting product is labeled as sample 4
  • 30 mg of graphene quantum dots the obtained product is labeled as sample 5
  • a NaOH solution was added dropwise to carry out a ring closure reaction, followed by extraction, washing and filtration to obtain a yellowish epoxy resin having an anti-ultraviolet function.
  • the prepared epoxy resin is coated into a film, and then observed, and subjected to ultraviolet protection test by a solar radiation spectrometer, and irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded in the table. 10 in.
  • Example 17 The application of the quantum dot composite material on the polyamide resin is generally 0.1% to 10.0%, and the specific operation process is as follows:
  • a solution of 20% methanol solution of adipic acid and 50% methanol solution of hexamethylenediamine was weighed to 5000 mL, the reaction temperature was controlled at 65 ° C, and the mixture was stirred thoroughly, and 80% of the methanol reflux reaction was used.
  • the obtained polyamide resin is formed into a film, and then observed, and subjected to an ultraviolet-proof test by a solar radiation spectrometer, and a light having a wavelength range of 200-1000 nm is selected for irradiation, and the absorption wavelength and transmittance are recorded in Table 11 .
  • Example 18 The application of the quantum dot composite material on the polyethylene resin is generally 0.1% to 10.0%, and the specific operation process is as follows:
  • LDPE Low Density Polyethylene
  • LLDPE Linear Low Density Polyethylene
  • the prepared polyethylene masterbatch is blown to obtain a polyethylene film, and then observed, and subjected to ultraviolet protection test by a solar radiation spectrometer, which is irradiated with a wavelength range of 200-1000 nm, and absorbs the wavelength and transmits light.
  • the rate is recorded in Table 12.
  • Example 19 The application of the quantum dot composite material on the phenolic resin is generally 0.1% to 10.0%, and the specific operation process is as follows:
  • the temperature was lowered by about 35 ° C, neutralized with HCl, the pH of the solution was made neutral, and then vacuum dehydrated at 50 ° C to obtain a phenolic resin having an ultraviolet ray-resistant function.
  • the obtained phenolic resin was observed, and the ultraviolet ray resistance test was carried out by a solar radiation spectrometer, and the light was irradiated with a wavelength in the range of 200-1000 nm, and the absorption wavelength and the transmittance were recorded in Table 13 in the recording.
  • Example 20 The application of the quantum dot composite material on the ABS resin is generally 0.1% to 10.0%, and the specific operation process is as follows:
  • ABS grafted powder and SAN resin were weighed separately, and blended, extruded and granulated to obtain ABS resin with anti-ultraviolet function.
  • the prepared ABS resin is coated into a film, and then observed, and subjected to an ultraviolet-proof test by a solar radiation spectrometer, and irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded in Table 14 in.
  • Example 21 The application of the quantum dot composite material on the isoprene rubber is generally 0.01% to 10.0%, and the specific operation process is as follows:
  • the catalyst was charged with 1.25 kg of TiCl 4 and Al(i-Bu) 3 , 11.25 kg of isoprene monomer was added, and two-step polymerization was carried out at 45 ° C and 65 ° C, respectively, followed by the addition of 2.5% terminator (methanol). And the antioxidant), the reaction was terminated, and the average was divided into 5 portions, and 10 g of carbon quantum dots @SiO 2 (the obtained product was labeled as sample 1) and 12 g of carbon quantum dots @Al 2 O 3 (the obtained product was labeled as sample 2) were respectively added.
  • Example 22 The application of the quantum dot composite material on styrene-butadiene rubber is generally 0.001% to 15.0%, and the specific operation process is as follows:
  • 900 g of butadiene and 350 g of styrene were weighed and placed in a polymerization vessel containing a medium, and polymerization was carried out at 8 ° C.
  • the medium in the polymerization vessel contained: water, deoxidizer (safety powder), and emulsification.
  • the polymerization reaction was terminated, and unreacted butadiene and styrene were recovered by flash degassing, and then dehydrated and dried to obtain a styrene-butadiene rubber having an ultraviolet-resistant function.
  • the prepared styrene-butadiene rubber is heated and coated into a film, and then observed, and subjected to ultraviolet-proof test by a solar radiation spectrometer, and irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded.
  • Example 23 Application of quantum dot composite material on nitrile rubber, the amount of addition is generally 0.01% to 15.0%, and the specific operation process is as follows:
  • the prepared nitrile rubber is heated and coated into a film, and then observed, and subjected to ultraviolet protection test by a solar radiation spectrometer, and irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded.
  • Table 17 The prepared nitrile rubber is heated and coated into a film, and then observed, and subjected to ultraviolet protection test by a solar radiation spectrometer, and irradiated with a wavelength range of 200-1000 nm, and the absorption wavelength and transmittance are recorded.
  • quantum dots or quantum dot composites are added to fibers, cosmetics, coatings, inks, resins and rubbers, and the products obtained have strong ultraviolet absorption effects in the wavelength range of 200-400 nm, including UVA and UVB regions. It acts to filter out ultraviolet rays, prevent aging and damage of skin and rubber caused by ultraviolet radiation, harden the deterioration of fibers and resins, and keep the color of paints and inks fresh. Moreover, the greater the amount of quantum dots added to fibers, cosmetics, paints, inks, and resins, the better the UV-absorbing effect of the resulting UV-blocking products, but the lower the light transmittance. In addition, in combination with other characteristics of the inorganic compound, such as high temperature resistance, synthetic fibers, cosmetics, paints, resins, paints, inks, and rubbers have characteristics of other inorganic compounds.

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  • Luminescent Compositions (AREA)

Abstract

本发明公开了量子点或量子点@无机化合物在制备防紫外线产品中的应用。其中量子点包括碳量子点和石墨烯量子点，量子点复合材料为量子点@SiO2、量子点@Al2O3、量子点@ZnO、碳量子点@TiO2或量子点@BaSO4，所述的防紫外线产品为纤维、化妆品、涂料、油墨、树脂或橡胶。本发明中，由量子点及量子点复合材料制得的防紫外线产品，吸收UVA和UVB的效果显著，生产成本低廉，所得产品具有安全(无毒)、稳定(不易分解)等优点。

Description

量子点及其复合材料在制备防紫外线产品中的应用 技术领域
本发明涉及量子点及其复合材料(量子点@无机化合物)的一种新用途，具体来说，是量子点或量子点与无机化合物复合后的材料作为UV吸收剂，在制备防紫外线产品中的应用。
背景技术
UV(紫外线)是一种人类无法看见的光波，其波长范围在
Figure PCTCN2018073589-appb-000001
之间，地面接收到的紫外线主要是UVA(黑斑紫外线，波长在320～400nm之间)和UVB(红斑紫外线，波长在280～320nm之间)，这些UV辐射引起工业产品的劣化，例如塑性材料的变硬易裂、橡胶的的硬化变脆、涂料的变色等，并且对人类皮肤造成不可忽视的损伤，因此研制出UV吸收谱宽、稳定性好的UV吸收剂成为工业发展和日常生活的共同需求。
传统的UV吸收剂主要包括水杨酸酯类、苯酮类、苯并三唑类、取代丙烯腈类、三嗪类和受阻胺类、三基色荧光粉、LED用荧光粉、氟化物体系、铝酸盐体系、硅酸盐体系和硫化物体系等。但是，传统的UV吸收剂存在诸多缺陷：1、多为化学材料，合成过程中多用到毒性原材料，如苯类等，添加到终端成品中难免存在毒性原材料或者毒性中间产物，UV吸收剂作为一种存在于人们日常生活中并经常接触到的产品，如化妆品、合成纤维等，直接或间接的危害人们的健康与安全；2、传统的UV吸收剂多为单一UV吸收剂，吸收紫外线波谱范围也相应比较单一，要么主要吸收UVA，要么是主要吸收UVB，只有多种混用才能实现同时吸收UVA和UVB的效果，复配型的UV吸收剂制造工序复杂；3、传统的UV吸收剂成本昂贵，市场平均售价在50-80元/kg，占据了工业产品较大的添加剂成本支出比例；4、影响产品的透明性，限制了UV吸收剂的使用范围。
量子点(Carbon Dots,CDs)，是近几年得以广泛应用的一种新型荧光碳纳米粒子，是一种近似球形且粒径很小的零维半导体纳米晶体，由极少分子或是原子组成的纳米团簇。量子点主要包括CdSe、CuInS 2、碳点、石墨烯量子点、硅点等，但在紫外区域光谱吸收较强，并使可见光具有较高的透光率的量子点，主要是碳点和石墨烯量子点，且经激发后，能产生光致发光现象，即发射荧光。鉴于碳点和石墨烯量子点的低毒性和生物相容性，可望作为紫外线吸收剂应用 到化工制品中，以改善其抗老化性能，同时也可用于防晒产品，阻隔紫外线以起到防晒作用。目前为止，对于碳点、石墨烯量子点及其复合材料在紫外线吸收或紫外线消除领域的应用未见报道。
发明内容
为了克服上述现有技术的缺点与不足，本发明的首要目的在于提供量子点及其复合材料在制备防紫外线产品中的应用。
本发明的目的通过下述方案实现：
量子点或量子点@无机化合物在制备防紫外线产品中的应用。
所述的量子点指碳量子点或石墨烯量子点。
所述的量子点@无机化合物指碳量子点@无机化合物或石墨烯量子点@无机化合物。
所述的碳量子点@无机化合物优选为碳量子点@SiO 2、碳量子点@Al 2O 3、碳量子点@ZnO、碳量子点@TiO 2或碳量子点@BaSO 4；所述的石墨烯量子点@无机化合物优选为石墨烯量子点@SiO 2、石墨烯量子点@Al 2O 3、石墨烯量子点@ZnO、石墨烯量子点@TiO 2或石墨烯量子点@BaSO 4。
所述的防紫外线产品为纤维、化妆品、涂料、油墨、树脂或橡胶。
优选地，所述的纤维为聚乙烯醇纤维、羧甲基纤维素纤维；
优选地，所述的化妆品为防晒乳液或防晒霜；
优选地，所述的涂料为油性漆或水性漆；
优选地，所述的油墨为水性油墨或紫外光固化油墨；
优选地，所述的树脂为聚酰胺树脂、聚乙烯树脂、酚醛树脂、ABS树脂、LED封装用环氧树脂或有机硅树脂。
优选地，所述的橡胶为异戊橡胶、丁苯橡胶或丁腈橡胶。
SiO 2、Al 2O 3、ZnO、TiO 2这四种氧化物的结构和性能都比较相近，都易形成介孔结构，有利于量子点进入介孔形成稳定的复合材料，且该四种氧化物以及BaSO 4在合成过程中，也可以将量子点包在晶胞中，所形成的复合材料不仅能保持量子点的性能，还具有较好的相容性，因此，能够应用到各行业中。本发明中通过量子点与无机化合物进行复合，对量子点进行表面改性处理，从而避免了量子点的团聚现象以及使其与制备产品的原料更好地相容，得到了量子点@无机化合物的复合材料，使其能作为UV吸收剂添加到各种产品中，制得防紫外线的产品。
本发明中，通过将制备的量子点直接加入到纤维、化妆品、树脂、涂料或油墨中，即可制备得到防紫外线产品，充分搅拌混合可使量子点均匀分散在制备产品的原料中，避免了量子点的团聚现象。
本发明通过将量子点或量子点复合材料加入到原料中制备得防紫外产品，所制备的防紫外线产品具有较宽的紫外吸收范围，能同时吸收UVA和UVB。通过将该制备的量子点或者量子点复合材料添加到纤维、化妆品、涂料、油墨或树脂中，使产品具有吸收紫外线的作用，降低化妆品的紫外线透过率，延长涂料、树脂、纤维或油墨等产品的使用寿命。
此外，碳量子点或石墨烯量子点作为一种新型的紫外线吸收剂，除了继承碳材料毒性小，生物相容性好等优点之外，还具有光学稳定性好、易于功能化等无可比拟的优势；碳或石墨烯量子点@无机化合物具有低毒性和生物相容性等特点，制备过程不含毒性原料，产品无毒，因此可应用于纤维、化妆品、涂料、油墨或树脂中。另外，量子点及量子点复合材料制作工序简单，成本非常低廉、耐高温、不易分解，具有良好的稳定性，通过添加到其它产品中也能使其它产品保持持久的紫外线吸收特性。
附图说明
图1为实施例1制备得到的碳量子点的透光率图谱。
图2为实施例1制备得到的碳量子点的透射电镜图。
图3为实施例2制备得到的石墨烯量子点的吸收光谱图。
图4为实施例3制备的碳量子点@SiO 2的扫描电镜图。
图5为实施例3制备的碳量子点@SiO 2的扫描电镜图的局部放大图。
图6为实施例3制备的碳量子点@SiO 2的透光率图谱；
图7为实施例3制备的碳量子点@SiO 2的激发光谱和荧光发射光谱；
图8为实施例4制备的碳量子点@Al 2O 3的扫描电镜图；
图9为实施例4制备的碳量子点@Al 2O 3的透光率图谱；
图10为实施例5制备的碳量子点@ZnO的扫描电镜图；
图11为实施例5制备的碳量子点@ZnO的透光率图谱；
图12为实施例6制备的碳量子点@TiO 2的扫描电镜图；
图13为实施例6制备的碳量子点@TiO 2的透光率图谱。
具体实施方式
下面结合实施例和附图对本发明作进一步详细的描述，但本发明的实施方式不限于此。
实施例中所用试剂如无特殊说明均可从市场常规购得。
实施例1：碳量子点的制备
称取1.5g无水柠檬酸溶解于35mL蒸馏水，加入0.8mL乙二胺、0.2ml三乙醇胺、0.15g赖氨酸和0.1ml苯乙酮，混合均匀后加入到反应釜中，于210℃进行反 应6h，冷却后取出反应液，经分子量为1000的透析袋透析后，将剩余液体进行减压蒸馏，所得残留物即为流动体的碳量子点，经冷冻干燥后可得固体成品碳量子点，或制备成碳量子点溶液备用。
对制得的流动性碳量子点加水，稀释浓度至1μg/g进行透光率检测，如图1碳量子点的透光率图谱所示，制备的碳量子点在200-400nm光波长范围内，包括280-400nm波长范围的光，即UVA和UVB区域，有明显的吸收，吸收峰Ⅰ：λmax≈267nm，透光率约为36％；吸收峰Ⅱ：λmax≈357nm，透光率约为3％；表明所制备的碳量子点对UVA和UVB具有良好的吸收效果，通过调整碳量子点浓度可以实现碳量子点对紫外线的完全吸收。对制得的碳量子点进行透射电镜检测，如图2所示，黑色暗斑即为制备的碳量子点，碳量子点为近圆形，分散均匀，粒径分布范围较集中。
实施例2：石墨烯量子点的制备
取20ml50wt％的氧化石墨烯水溶液，分别加入2ml浓盐酸和2ml浓硝酸，60℃的水浴条件下回流24h，稀释至200ml后取30ml溶液转移至反应釜中，然后用氢氧化钠调PH为7-8，于220℃水热反应5h，即得平均尺寸大小为6nm的石墨烯量子点。
制得的石墨烯量子点，稀释浓度至10μg/g进行紫外可见吸收光谱测试，结果如图3所示，从图3中可知，制得的石墨烯量子点在200-400nm范围内，具有显著的吸收峰。基于石墨烯量子点的高可见光透光率，以及UV吸收性能，石墨烯量子点可用作为紫外线吸收剂。
实施例3：量子点@SiO 2复合材料的制备
碳量子点@SiO 2复合材料的制备：取60mL三乙醇胺，加入到30mL去离子水中，80℃条件下搅拌30min，然后依次加入0.40gCTAB(十六烷基三甲基溴化铵)和0.2g水杨酸钠，继续搅拌1.5h，再加入3mL正硅酸乙酯，此时加入200μl碳量子点溶液(50wt％)或100μg固体碳量子点(实施例1制备的)，搅拌条件下反应12h，所得溶液经抽滤、50℃真空干燥得到白色粉末，即是制得的碳量子点@SiO 2复合材料。或者是将实例1制备的碳量子点与介孔SiO 2，在水/乙醇溶液中充分搅拌，再经过洗涤干燥，也可获得碳量子点@SiO 2复合材料。
对实施例3中前一种方法制得的碳量子点@SiO 2复合材料进行电镜扫描，结果如图4和图5所示。由图4和图5可见，制备出的碳量子点@SiO 2复合材料分散性较好，粒径分布均匀，图5为高分辨率扫描电子显微镜，可以清楚地看见SiO 2材料的晶体，为类球形，碳量子点附着SiO 2材料的表面，类球体晶体之间相互嵌合。取实施例3中前一种方法制得的碳量子点@SiO 2复合材料溶于水制 备浓度为1μg/g的水溶液，然后进行透光率检测，其图谱如图6所示。由图6可见，碳量子点@SiO 2复合材料在200-400nm波长范围内，包括UVA和UVB区域，有明显的紫外光吸收；吸收峰Ⅰ：λ max≈267nm，透光率约为50％；吸收峰Ⅱ：λ max≈357nm，透光率约为35％；表明所制备的碳量子点@SiO 2复合材料对UVA和UVB具有良好的吸收效果。对上述制备的1μg/g的碳量子点@SiO 2水溶液采用荧光分光光度法测定样品的激发光谱和荧光发射光谱，其图谱如图7所示，碳量子点@SiO 2材料的激发光谱和荧光发射光谱呈近似的峰型图，激发光波长在200-400nm波长范围内吸收峰高，荧光发射光波长范围集中在400-500nm。从制备出的碳量子点@SiO 2的紫外光吸收效应和相应的荧光发射效应来看，制备出的碳量子点@SiO 2复合材料获得了碳量子点的紫外线吸收特性和发射荧光的特性。
石墨烯量子点@SiO 2复合材料的制备：将实施例3前一种碳量子点@SiO 2复合材料的制备方法中碳量子点替换为实施例2制备的石墨烯量子点，即得到石墨烯量子点@SiO 2复合材料。取制得的石墨烯量子点@SiO 2复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，结果与碳量子点@SiO 2复合材料近似，在200-400nm波长范围内，包括UVA和UVB区域，有明显的紫外光吸收；对上述制备的1μg/g的石墨烯量子点@SiO 2水溶液采用荧光分光光度法测定样品的激发光谱和荧光发射光谱，结果均与碳量子点@SiO 2复合材料近似，说明制备出的石墨烯量子点@SiO 2复合材料获得了石墨烯量子点的紫外线吸收特性和发射荧光的特性。
实施例4：量子点@Al 2O 3复合材料的制备
碳量子点@Al 2O 3复合材料的制备：称取0.5g介孔Al 2O 3材料溶于100mL蒸馏水或乙醇中，搅拌至Al 2O 3材料完全分散于溶剂中，向上述溶液中加入100μg实施例1制备的碳量子点，充分搅拌30min至均匀超声分散24h，或在介孔Al 2O 3材料制备过程中加入100μg实施例1制备的碳量子点，所得溶液经抽滤，再于60-100℃条件下烘干制得碳量子点@Al 2O 3复合材料。
对制得的碳量子点@Al 2O 3复合材料进行扫描电镜检测，结果如图8所示。由图8可见，复合材料分布均匀，外形呈絮状。对取制得的碳量子点@Al 2O 3复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，其图谱如图9所示。由图9可见，碳量子点@Al 2O 3复合材料在280-400nm波长范围内，即UVA和UVB区域，有明显的紫外光吸收，吸收峰Ⅰ：λ max≈267nm，透光率约为60％；吸收峰Ⅱ：λ max≈357nm，透光率约为40％；表明所制备的碳量子点@Al 2O 3复合材料对UVA和UVB具有良好的吸收效果。对上述制备的1μg/g的碳量子点@Al 2O 3水溶液采用荧光分光光度法测定样品的激发光谱和荧光发射光谱，测 定结果与上述制备的碳量子点@SiO 2近似，都具有显著的蓝光发射，只是发射主峰略有差异。从制备出的碳量子点@Al 2O 3的紫外光吸收效应和相应的荧光发射效应来看，制备出的碳量子点@Al 2O 3复合材料获得了碳量子点的紫外线吸收特性和发射荧光的特性。
石墨烯量子点@Al 2O 3复合材料的制备：将实施例4中碳量子点@Al 2O 3复合材料的制备过程中的碳量子点替换为实施例2中制备的石墨烯量子点，即得到石墨烯量子点@Al 2O 3复合材料。取制得的石墨烯量子点@Al 2O 3复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，结果与碳量子点@Al 2O 3复合材料近似，在280-400nm波长范围内，包括UVA和UVB区域，有明显的紫外光吸收；对上述制备的1μg/g的石墨烯量子点@Al 2O 3水溶液采用荧光分光光度法测定样品的激发光谱和荧光发射光谱，结果均与碳量子点@Al 2O 3复合材料近似，说明制备出的石墨烯量子点@Al 2O 3复合材料获得了石墨烯量子点的紫外线吸收特性和发射荧光的特性。
实施例5：量子点@ZnO复合材料的制备
碳量子点@ZnO复合材料的制备方法与实施例4中制备碳量子点@Al 2O 3复合材料的方法相同。或者，在ZnO的反应溶液中加入实例1中的碳量子点，在ZnO的生成过程中，将碳量子点包裹与ZnO晶体之中，实现结构牢固的复合。
对实施例5中前一种碳量子点@ZnO复合材料的制备方法制得的碳量子点@ZnO复合材料进行扫描电镜检测，结果如图10所示。由图10可见，制得的复合材料的扫描电镜图能清楚分辨晶体结构及其外形，晶体排列均匀，分散性较好，粒径分布均匀。取实施例5中前一种碳量子点@ZnO复合材料的制备方法制得的碳量子点@ZnO复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，其图谱如图11所示。由图11可见，碳量子点@ZnO复合材料在280-400nm波长范围内，即UVA和UVB区域，有明显的紫外光吸收，吸收峰Ⅰ：λ max≈267nm，透光率约为60％；吸收峰Ⅱ：λ max≈357nm，透光率约为45％；表明所制备的碳量子点@ZnO复合材料对UVA和UVB具有良好的吸收效果。对上述制备的1μg/g的碳量子点@ZnO水溶液采用荧光分光光度法测定样品的激发光谱和荧光发射光谱，测定结果与实施例3制备的碳量子点@SiO 2近似，都具有显著的蓝光发射，只是发射主峰略有差异，制备出的碳量子点@ZnO复合材料获得了碳量子点的紫外线吸收特性和发射荧光的特性。
石墨烯量子点@ZnO复合材料的制备方法与实施例4中制备石墨烯量子点@Al 2O 3复合材料的方法相同。取制得的石墨烯量子点@ZnO复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，结果与碳量子点@ZnO复合材料近似，表明所制备的石墨烯量子点@ZnO复合材料对UVA和UVB具有良好的 吸收效果。
实施例6：量子点@TiO 2复合材料的制备
碳量子点@TiO 2复合材料的制备方法与实施例4中制备碳量子点@Al 2O 3复合材料的方法相同。对制得的碳量子点@TiO 2复合材料进行扫描电镜检测，结果如图12所示。由图12可见，制备的复合材料的晶体结构呈棱锥型或棱柱型，分散较均匀，晶体大小分布范围窄。取制得的碳量子点@TiO 2复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，其图谱如图13所示。由图13可见，碳量子点@TiO 2复合材料在280-400nm波长范围内，即UVA和UVB区域，有明显的紫外光吸收，主要吸收峰：λ max≈357nm，透光率约为20％；表明所制备的碳量子点@TiO 2复合材料对UVA和UVB具有良好的吸收效果。对上述制备的1μg/g的碳量子点@TiO 2水溶液采用荧光分光光度法测定样品的激发光谱和荧光发射光谱，测定结果与上述制备的碳量子点@SiO 2近似，都具有显著的蓝光发射，只是发射主峰略有差异，制备出的碳量子点@TiO 2复合材料获得了碳量子点的紫外线吸收特性和发射荧光的特性。
石墨烯量子点@TiO 2复合材料的制备方法与实施例4中制备石墨烯量子点@Al 2O 3复合材料的方法相同。取制得的石墨烯量子点@TiO 2复合材料溶于水制备浓度为1μg/g的水溶液，然后进行透光率检测，结果与碳量子点@TiO 2复合材料近似，表明所制备的石墨烯量子点@TiO 2复合材料对UVA和UVB具有良好的吸收效果。
实施例7：量子点@BaSO 4复合材料的制备
碳量子点@BaSO 4复合材料的制备：称取50g的BaCl 2·2H 2O，溶解于400ml的水中，配制为A液，然后加入10ml的碳量子点溶液(2mg/ml)，充分搅拌混合均匀，再称取27g(NH 4) 2SO 4，溶解于300ml水中，配制为B液，然后将B液在15分钟内滴加到A液中，继续反应15min，然后进行洗涤、干燥，即得碳量子点@BaSO 4复合材料。取制得的碳量子点@BaSO 4复合材料，于紫外灯下观察其具有明亮的蓝光发射，将其分散于水中，进行透光率测试，发现其在200-400nm光区范围内，发现有显著的吸收峰，且随着浓度的增加，其吸收峰相应增强。同时，BaSO 4是重要的化工产品添加剂，使得碳量子点@BaSO 4具有添加剂和UV吸收剂双功能特性。
石墨烯量子点@BaSO 4复合材料的制备：将实施例7中碳量子点@BaSO 4复合材料的制备过程中的碳量子点替换为实施例2制备的石墨烯量子点即得石墨烯量子点@BaSO 4复合材料，取制得的石墨烯量子点@BaSO 4复合材料，于紫外灯下观察其具有明亮的蓝光发射，将其分散于水中，进行透光率测试，发现 其在200-400nm光区范围内，发现有显著的吸收峰，且随着浓度的增加，其吸收峰相应增强。说明石墨烯量子点@BaSO 4复合材料具有UV吸收剂功能特性。
实施例8：量子点及量子点复合材料在聚乙烯醇纤维上的应用，加入量一般为0.01％～1.2％，具体操作过程如下：
称取57g分子量为60000～150000的聚乙烯醇，溶于去离子水中，平均分成19份，分别加入5mg的碳量子点(所得产品标记为样品1)、10mg的碳量子点(所得产品标记为样品2)、20mg的碳量子点(所得产品标记为样品3)、5mg的碳量子点@SiO 2(所得产品标记为样品4)、10mg的碳量子点@SiO 2(所得产品标记为样品5)、20mg(所得产品标记为样品6)的碳量子点@SiO 2，5mg的碳量子点@Al 2O 3(所得产品标记为样品7)、10mg的碳量子点@Al 2O 3(所得产品标记为样品8)、20mg(所得产品标记为样品9)的碳量子点@Al 2O 3，5mg的碳量子点@ZnO(所得产品标记为样品10)、10mg的碳量子点@ZnO(所得产品标记为样品11)、20mg(所得产品标记为样品12)的碳量子点@ZnO，5mg的碳量子点@TiO 2(所得产品标记为样品13)、10mg的碳量子点@TiO 2(所得产品标记为样品14)、20mg(所得产品标记为样品15)的碳量子点@BaSO 4，20mg的石墨烯量子点(所得产品标记为样品16)、20mg(所得产品标记为样品17)的石墨烯量子点@SiO 2，20mg(所得产品标记为样品18)的石墨烯量子点@TiO 2、20mg(所得产品标记为样品19)的石墨烯量子点@BaSO 4，混合均匀，采用真空干燥(60～80℃)的方法制得聚乙烯醇纤维。对制得的聚乙烯醇纤维进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表1中。
表1 聚乙烯醇纤维的吸收波长和透光率
Figure PCTCN2018073589-appb-000002
Figure PCTCN2018073589-appb-000003
实施例9：量子点及量子点复合材料在防晒乳液上的应用，加入量一般为0.01％～2.0％，具体操作过程如下：
依次取12.0g阿伏苯宗、50.0g水杨酸盐、23.0mL氧苯酮、3.0g消泡剂、34g乳化增稠剂、78g水，搅拌20分钟后，平均分成3份，分别加入3mg碳量子点(所得产品标记为样品1)、8mg的碳量子点(所得产品标记为样品2)、16mg碳量子点(所得产品标记为样品3)，充分搅拌混合均匀，即制得防晒乳液。
依次取16.5g阿伏苯宗、68.8g水杨酸盐、31.6.0mL氧苯酮、4.1g消泡剂、 46.8g乳化增稠剂、107g水，搅拌20分钟后，平均分成11份，分别加入30mg碳量子点@SiO 2(所得产品标记为样品4)、80mg的碳量子点@SiO 2(所得产品标记为样品5)、50mg碳量子点@Al 2O 3(所得产品标记为样品6)、70mg的碳量子点@Al 2O 3(所得产品标记为样品7)、20mg碳量子点@ZnO(所得产品标记为样品8)、50mg的碳量子点@ZnO(所得产品标记为样品9)、50mg碳量子点@TiO 2(所得产品标记为样品10)、80mg的碳量子点@TiO 2(所得产品标记为样品11)、80mg的碳量子点@BaSO 4(所得产品标记为样品12)、80mg石墨烯量子点@SiO 2(所得产品标记为样品13)、80mg石墨烯量子点@ZnO(所得产品标记为样品14)，充分搅拌混合均匀，即制得防晒乳液。对制得的防晒乳液进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表3中。
表3 防晒乳液的吸收波长和透光率
Figure PCTCN2018073589-appb-000004
实施例10：量子点及量子点复合材料在防晒霜上的应用，加入量一般为0.01％～2.0％，具体操作过程如下：
分别称取6g阿伏苯宗、26g水杨酸盐、10g辛水杨酯、8g氧苯酮，混合后加热至溶解，平均分成6份，于40℃条件下，分别加入5mg碳量子点(所得产品标记为样品1)、10mg的碳量子点(所得产品标记为样品2)、20mg的碳量子点(所得产品标记为样品3)、10mg的石墨烯量子点(所得产品标记为样品4)、20mg的石墨烯量子点(所得产品标记为样品5)、30mg的石墨烯量子点(所得产品标记为样品6)充分搅拌混合均匀，至室温即得防晒霜。
分别称取4.8g阿伏苯宗、20.8g水杨酸盐、8g辛水杨酯、6.4g氧苯酮，混合后加热至溶解，平均分成8份，于40℃条件下，分别加入5mg碳量子点@SiO 2(所得产品标记为样品7)、15mg的碳量子点@SiO 2(所得产品标记为样品8)、20mg的碳量子点@Al 2O 3(所得产品标记为样品9)、20mg碳量子点@ZnO(所得产品标记为样品10)、20mg碳量子点@TiO 2(所得产品标记为样品11)、20mg的碳量子点@BaSO 4(所得产品标记为样品12)、20mg石墨烯量子点@ZnO(所得产品标记为样品13)、20mg石墨烯量子点@TiO 2(所得产品标记为样品14)充分搅拌混合均匀，冷却至室温制得防晒霜。对制得的防晒霜进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表4中。
表4 防晒霜的吸收波长和透光率
Figure PCTCN2018073589-appb-000005
实施例11：量子点及量子点复合材料在油性漆上的应用，加入量一般为0.01％～2.0％，具体操作过程如下：
依次取103.00g环氧树脂、55.00g有机膨润土、5.80g正丁醇、1.67mL乙醇、0.25mL二甲苯、0.58mL消泡剂，80℃下搅拌2h，平均分成5份，分别加入100mg碳量子点(所得产品标记为样品1)、150mg的碳量子点(所得产品标记为样品2)、200mg碳量子点(所得产品标记为样品3)、100mg石墨烯量子点(所得产品标记为样品4)、200mg石墨烯量子点(所得产品标记为样品5)，充分混合后，即得具有抗紫外线功能的油性漆。
依次称取77.50g环氧树脂、41.3g有机膨润土、4.4g正丁醇、1.25mL乙醇、0.19mL二甲苯、0.44mL消泡剂，80℃下搅拌2h，平均分成5份，分别加入100mg碳量子点@SiO 2(所得产品标记为样品6)、120mg的碳量子点@Al 2O 3(所得产品标记为样品7)、125mg碳量子点@ZnO(所得产品标记为样品8)、150mg碳量子点@TiO 2(所得产品标记为样品9)、150mg石墨烯量子点@TiO 2(所得产品标记为样品10)，充分搅拌混合后，即得具有抗紫外线功能的油性漆。对制得的油性漆进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表5中。
表5 油性漆的吸收波长和透光率
Figure PCTCN2018073589-appb-000006
实施例12：量子点及量子点复合材料在水性漆上的应用，加入量一般为0.01％～3.5％，具体操作过程如下：
依次取91.7g水性聚氨酯、26.7g丙烯酸、0.67g分散剂、0.92mL消泡剂、1.75g增稠剂、28.3mL纯水，60℃下搅拌3h，平均分成5份，分别加入50mg碳量子点(所得产品标记为样品1)、100mg的碳量子点(所得产品标记为样品2)、150mg碳量子点(所得产品标记为样品3)、80mg石墨烯量子点(所得产品标记为样品4)、150mg石墨烯量子点(所得产品标记为样品5)，充分混合后，即得具有抗紫外线功能的水性漆。
依次称取68.8g水性聚氨酯、20.00g丙烯酸、0.50g分散剂、0.69mL消泡剂、1.31g增稠剂、21.3mL纯水，60℃下搅拌3h，平均分成5份，分别加入50mg碳量子点@SiO 2(所得产品标记为样品6)、65mg的碳量子点@Al 2O 3(所得产品标记为样品7)、70mg碳量子点@ZnO(所得产品标记为样品8)、80mg碳量子点@TiO 2(所得产品标记为样品9)、80mg的石墨烯量子点@BaSO 4(所得产品标记为样品10)，充分搅拌混合后，即得具有抗紫外线功能的水性漆。对制得的水性漆进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表6中。
表6 水性漆的吸收波长和透光率
Figure PCTCN2018073589-appb-000007
实施例13：量子点及量子点复合材料在水性油墨上的应用，加入量为0.01％～3.5％，具体操作过程如下：
按质量百分比称取45.00％树脂液、9.00％酞青蓝、8.00％乳化油、15.00％乙二醇乙醚、0.50％消泡剂、22.50％去离子水共150g，搅拌1.5h，平均分成5份，分别加入30mg碳量子点(所得产品标记为样品1)、60mg的碳量子点(所得产品标记为样品2)、90mg碳量子点(所得产品标记为样品3)、30mg石墨烯 量子点(所得产品标记为样品4)、90mg石墨烯量子点(所得产品标记为样品5)，充分混合后，即得具有抗紫外线功能的水性油墨。
按质量百分比称取45.00％树脂液、9.00％酞青蓝、8.00％乳化油、15.00％乙二醇乙醚、0.50％消泡剂、22.50％去离子水共100g，搅拌1.5h，平均分成5份，分别加入30mg碳量子点@SiO 2(所得产品标记为样品6)、35mg的碳量子点@Al 2O 3(所得产品标记为样品7)、40mg碳量子点@ZnO(所得产品标记为样品8)、45mg碳量子点@TiO 2(所得产品标记为样品9)、45mg石墨烯量子点@TiO 2(所得产品标记为样品10)，充分搅拌混合后，即得具有抗紫外线功能的水性油墨。对制得的水性油墨进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表7中。
表7 水性油墨的吸收波长和透光率
Figure PCTCN2018073589-appb-000008
实施例14：量子点及量子点复合材料在紫外光固化油墨上的应用，加入量为0.01％～3.5％，具体操作过程如下：
依次取50.0g丙烯酸树脂、16.7g三羟甲基丙烷三丙烯酸酯、51.7g三丙二醇二丙烯酸酯、8.3mL二苯甲酮、5.0mL二苯乙二酮、3.3mL甲基二乙醇胺、26.7g品红)，搅拌2h，平均分成5份，分别加入30mg碳量子点(所得产品标记为样品1)、60mg的碳量子点(所得产品标记为样品2)、90mg碳量子点(所得产品标记为样品3)、30mg石墨烯量子点(所得产品标记为样品4)、90mg石墨烯量子点(所得产品标记为样品5)，充分混合后，即得具有抗紫外线功能的紫外光固化油墨。
依次称取37.5g丙烯酸树脂、12.5g三羟甲基丙烷三丙烯酸酯、38.75g三丙 二醇二丙烯酸酯、6.25mL二苯甲酮、3.75mL二苯乙二酮、2.5mL甲基二乙醇胺、20.0g品红，搅拌2h，平均分成5份，分别加入60mg碳量子点@SiO 2(所得产品标记为样品6)、55mg的碳量子点@Al 2O 3(所得产品标记为样品7)、45mg碳量子点@ZnO(所得产品标记为样品8)、50mg碳量子点@TiO 2(所得产品标记为样品9)、60mg的石墨烯量子点@Al 2O 3(所得产品标记为样品10)，充分搅拌混合后，即得具有抗紫外线功能的紫外光固化油墨。对制得的紫外光固化油墨进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录在表8中。
表8 紫外光固化油墨的吸收波长和透光率
Figure PCTCN2018073589-appb-000009
实施例15：量子点及量子点复合材料在有机硅树脂上的应用，加入量一般为0.01％～1.5％，具体操作过程如下：
按摩尔比6.5:1依次称取二苯基硅二醇和碱性阴离子交换树脂D296R共20g，再加入1.2％(与二苯基硅二醇的质量比)的硅烷偶联剂KH550，氮气保护下，于70℃搅拌反应2.5h，平均分成5份，然后分别加入10mg碳量子点(所得产品标记为样品1)、20mg碳量子点(所得产品标记为样品2)、30mg碳量子点(所得产品标记为样品3)、15mg石墨烯量子点(所得产品标记为样品4)、30mg石墨烯量子点(所得产品标记为样品5)，充分混合后，过滤去除交换树脂和减压去除低沸物，即得具有抗紫外线功能的微黄色有机硅树脂。
按摩尔比6.5:1依次称取二苯基硅二醇和碱性阴离子交换树脂D296R共250g，再加入1.2％(与二苯基硅二醇的质量比)的硅烷偶联剂KH550，氮气保护下，于70℃搅拌反应2.5h，平均分成5份，然后分别加入25mg碳量子点@SiO 2(所得产品标记为样品6)、40mg的碳量子点@Al 2O 3(所得产品标记为样品7)、 50mg碳量子点@ZnO(所得产品标记为样品8)、50mg碳量子点@TiO 2(所得产品标记为样品9)、50mg石墨烯量子点@ZnO(所得产品标记为样品10)，充分混合后，过滤去除交换树脂和减压去除低沸物，即得具有抗紫外线功能的微黄色有机硅树脂。对制得的有机硅树脂进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表9中。
表9 有机硅树脂的吸收波长和透光率
Figure PCTCN2018073589-appb-000010
实施例16：量子点及量子点复合材料在环氧树脂上的应用，加入量一般为0.01％～1.5％，具体操作过程如下：
依次取7.5g的双酚A、20.0g的环氧氯丙烷以及250mL甲苯溶剂，置于反应釜中，升温60℃时，进行醚化反应1.5h，平均分成5份，然后分别加入10mg碳量子点(所得产品标记为样品1)、20mg碳量子点(所得产品标记为样品2)、30mg碳量子点(所得产品标记为样品3)、15mg石墨烯量子点(所得产品标记为样品4)、30mg石墨烯量子点(所得产品标记为样品5)，充分混合后，滴加NaOH溶液进行闭环反应，再进行萃取、洗涤、过滤，即得具有抗紫外线功能的微黄色环氧树脂。
依次称取5.63g的双酚A、15g的环氧氯丙烷以及188mL甲苯溶剂，置于反应釜中，升温60℃时，进行醚化反应3h，平均分成5份，然后分别加入12mg碳量子点@SiO 2(所得产品标记为样品6)、20mg的碳量子点@Al 2O 3(所得产品标记为样品7)、20mg碳量子点@ZnO(所得产品标记为样品8)、30mg碳量子点@TiO 2(所得产品标记为样品9)、30mg石墨烯量子点@BaSO 4(所得产品标记为样品10)，充分混合后，滴加NaOH溶液进行闭环反应，再进行萃取、 洗涤、过滤，即得具有抗紫外线功能的微黄色环氧树脂。对制得的环氧树脂进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表10中。
表10 环氧树脂的吸收波长和透光率
Figure PCTCN2018073589-appb-000011
实施例17：量子点复合材料在聚酰胺树脂上的应用，加入量一般为0.1％～10.0％，具体操作过程如下：
按照体积比1:1的比例分别称取己二酸的20％甲醇溶液和己二胺的50％甲醇溶液共5000mL，反应温度控制在65℃，充分搅拌，采用甲醇回流反应完成80％时，平均分成5份，分别加入5g碳量子点@SiO 2(所得产品标记为样品1)、3g的碳量子点@Al 2O 3(所得产品标记为样品2)、6g碳量子点@ZnO(所得产品标记为样品3)、8g碳量子点@TiO 2(所得产品标记为样品4)、8g石墨烯量子点@SiO 2(所得产品标记为样品5)，充分搅拌混合后，调节PH为6.7，冷却、结晶、分离即得具有抗紫外线功能的聚酰胺树脂。对制得的聚酰胺树脂进行成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表11中。
表11 聚酰胺树脂的吸收波长和透光率
Figure PCTCN2018073589-appb-000012
Figure PCTCN2018073589-appb-000013
实施例18：量子点复合材料在聚乙烯树脂上的应用，加入量一般为0.1％～10.0％，具体操作过程如下：
按照质量比1:6称取LDPE(低密度聚乙烯)和LLDPE(线性低密度聚乙烯)共25Kg进行混合，平均分成5份，分别加入100g碳量子点@SiO 2(所得产品标记为样品1)、120g的碳量子点@Al 2O 3(所得产品标记为样品2)、80g碳量子点@ZnO(所得产品标记为样品3)、150g碳量子点@TiO 2(所得产品标记为样品4)、120g的石墨烯量子点@Al 2O 3(所得产品标记为样品5)，充分搅拌混合均匀，然后于185℃条件下进行造粒，即得具有抗紫外线功能的聚乙烯母粒。对制得的聚乙烯母粒进行吹膜，得到聚乙烯膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表12中。
表12 碳量子点复合材料在聚乙烯树脂上的应用
Figure PCTCN2018073589-appb-000014
实施例19：量子点复合材料在酚醛树脂上的应用，加入量一般为0.1％～10.0％，具体操作过程如下：
称取6.25g苯酚和5mL浓度为40％的甲醛溶液，倒入烧瓶中，升温至40℃时，加入氢氧化钠溶液，固定反应温度为50℃，进行反应2h，平均分成5份，分别加入10mg碳量子点@SiO 2(所得产品标记为样品1)、12mg的碳量子点@Al 2O 3(所得产品标记为样品2)、8mg碳量子点@ZnO(所得产品标记为样品3)、15mg碳量子点@TiO 2(所得产品标记为样品4)、15mg石墨烯量子点@Al 2O 3(所得产品标记为样品5)，再固定温度为78℃，进行反应3h，反应结束后，将温度降低35℃左右，用HCl进行中和，使得溶液PH为中性，然后于50℃条件下真空脱水，即得具有抗紫外线功能的酚醛树脂。对制得的酚醛树脂进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表13中。
表13 酚醛树脂的吸收波长和透光率
Figure PCTCN2018073589-appb-000015
实施例20：量子点复合材料在ABS树脂上的应用，加入量一般为0.1％～10.0％，具体操作过程如下：
称取125gABS接枝胶乳，催化剂作用下进行凝聚反应，平均分成5份，然后分别加入20mg碳量子点@SiO 2(所得产品标记为样品1)、30mg的碳量子点@Al 2O 3(所得产品标记为样品2)、35mg碳量子点@ZnO(所得产品标记为样品3)、40mg碳量子点@TiO 2(所得产品标记为样品4)、40mg石墨烯量子点@ZnO(所得产品标记为样品5)，充分搅拌混合后，进行洗涤干燥，得到ABS接枝粉。
称取75g聚乙烯、15g丙烯腈和5g催化剂，于145℃下开始聚合反应，反应时间为3h，即得到SAN树脂。
按照5:1比例，分别称取ABS接枝粉和SAN树脂，进行掺混、挤压、造粒即得具有抗紫外线功能的ABS树脂。对制得的ABS树脂进行涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表14中。
表14 ABS树脂的吸收波长和透光率
Figure PCTCN2018073589-appb-000016
实施例21：量子点复合材料在异戊橡胶上的应用，加入量一般为0.01％～10.0％，具体操作过程如下：
配置催化剂1.25kg的TiCl 4和Al(i-Bu) 3，加入11.25kg的异戊二烯单体，分别于45℃和65℃条件下进行两步聚合反应，然后加入2.5％终止剂(甲醇和抗 氧剂)，终止反应，平均分成5份，分别加入10g碳量子点@SiO 2(所得产品标记为样品1)、12g的碳量子点@Al 2O 3(所得产品标记为样品2)、11g碳量子点@ZnO(所得产品标记为样品3)、15g碳量子点@TiO 2(所得产品标记为样品4)、15g石墨烯量子点@TiO 2(所得产品标记为样品5)，经过沉降分离、脱气与水分离，回收溶剂和单体，然后进行脱水、干燥，即得具有抗紫外功能的异戊橡胶。对制得的异戊橡胶进行加热涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表15中。
表15 异戊橡胶的吸收波长和透光率
Figure PCTCN2018073589-appb-000017
实施例22：量子点复合材料在丁苯橡胶上的应用，加入量一般为0.001％～15.0％，具体操作过程如下：
称取900g丁二烯和350g苯乙烯，置于含有介质的聚合釜中，于8℃条件下，进行聚合反应，其中，聚合釜中的介质包含有：水、脱氧剂(保险粉)、乳化剂(歧化松香酸钠)、硫酸亚铁、EDTA-二钠盐，聚合反应8h，当聚合转化效率达60％时，平均分成5份，分别加入10g碳量子点@SiO 2(所得产品标记为样品1)、12g的碳量子点@Al 2O 3(所得产品标记为样品2)、11g碳量子点@ZnO(所得产品标记为样品3)、12g碳量子点@TiO 2(所得产品标记为样品4)、12g石墨烯量子点@Al 2O 3(所得产品标记为样品5)，继续进行聚合反应2h，加入终止剂(二甲基二硫代氨基甲酸钠、亚硝酸钠和多硫化钠)终止聚合反应，经闪蒸脱气回收未反应的丁二烯和苯乙烯，然后脱水、干燥，即得具有抗紫外功能的丁苯橡胶。对制得的丁苯橡胶进行加热涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表16中。
表16 丁苯橡胶的吸收波长和透光率
Figure PCTCN2018073589-appb-000018
Figure PCTCN2018073589-appb-000019
实施例23：量子点复合材料在丁腈橡胶上的应用，加入量一般为0.01％～15.0％，具体操作过程如下：
按照3.5:1比例，分别称取丁二烯和丙烯腈共1.25Kg，加入到具有调节剂、乳化剂和引发剂的水介质中，充分混合后，于聚合釜中，45℃条件下进行聚合反应6h，平均分成5份，然后分别加入15g碳量子点@SiO 2(所得产品标记为样品1)、15g的碳量子点@Al 2O 3(所得产品标记为样品2)、12g碳量子点@ZnO(所得产品标记为样品3)、15g碳量子点@TiO 2(所得产品标记为样品4)、15g石墨烯量子点@TiO 2(所得产品标记为样品5)，继续进行聚合反应1h，加入终止剂终止聚合反应，经过闪蒸回收未反应的丁二烯和丙烯腈，再进行脱水、干燥即得固体具有抗紫外功能的丁腈橡胶。对制得的丁腈橡胶进行加热涂布成膜，然后进行观察，用太阳光辐射光谱仪进行防紫外测试，选用波长范围为200-1000nm光对其照射，将其吸收波长和透光率记录中表17中。
表17 丁腈橡胶的吸收波长和透光率
Figure PCTCN2018073589-appb-000020
由表
Figure PCTCN2018073589-appb-000021
可见，将量子点或量子点复合材料添加到纤维、化妆品、涂料、油墨、树脂和橡胶中，制得的产品在200-400nm波长范围内获得强的紫外线吸收效果，包括UVA和UVB区域，能起到滤除紫外线的作用，防止紫外线照射引起的皮肤、橡胶等老化和损伤、纤维和树脂的劣化变硬，还能使涂料和油墨的色彩保持光鲜。而且，将量子点添加到纤维、化妆品、涂料、油墨和树脂中的量越大，制得的防紫外线产品对紫外线的吸收效果越好，但透光率越低。另外，结合无机化合物的其它特性，如耐高温等，使得合成纤维、化妆品、涂料、树脂、油漆、油墨、橡胶兼有其它无机化合物的特性。
上述实施例为本发明较佳的实施方式，但本发明的实施方式并不受上述实施例的限制，其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本发明的保护范围之内。

Claims (10)

  1. 量子点或量子点@无机化合物在制备防紫外线产品中的应用。
  2. 根据权利要求1所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：
    所述的量子点指碳量子点或石墨烯量子点；
    所述的量子点@无机化合物指碳量子点@无机化合物或石墨烯量子点@无机化合物。
  3. 根据权利要求2所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：
    所述的碳量子点@无机化合物指碳量子点@SiO 2、碳量子点@Al 2O 3、碳量子点@ZnO、碳量子点@TiO 2或碳量子点@BaSO 4；
    所述的石墨烯量子点@无机化合物为石墨烯量子点@SiO 2、石墨烯量子点@Al 2O 3、石墨烯量子点@ZnO、石墨烯量子点@TiO 2或石墨烯量子点@BaSO 4。
  4. 根据权利要求1～3任一项所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的防紫外线产品为纤维、化妆品、涂料、油墨、树脂或橡胶。
  5. 根据权利要求4所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的纤维为聚乙烯醇纤维、羧甲基纤维素纤维。
  6. 根据权利要求4所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的化妆品为防晒乳液或防晒霜。
  7. 根据权利要求4所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的涂料为油性漆或水性漆。
  8. 根据权利要求4所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的油墨为水性油墨或紫外光固化油墨。
  9. 根据权利要求4所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的树脂为聚酰胺树脂、聚乙烯树脂、酚醛树脂、ABS树脂、环氧树脂或有机硅树脂。
  10. 根据权利要求4所述的量子点或量子点@无机化合物在制备防紫外线产品中的应用，其特征在于：所述的橡胶为异戊橡胶、丁苯橡胶或丁腈橡胶。
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